The coroner was highly critical of the Metropolitan Police's Counter Terrorism Command (SO15), who failed to tell the senior investigating officer before the inquest began of the existence of nine memory sticks and other property in Williams's SIS office.
Detective Constable (DC) Jennifer Bell, who had previously been seconded to the Metropolitan Police Service's SO15 Counter Terrorism Command, was brought into the inquiry to examine hours of recovered CCTV footage for sightings of Nelson.
SO15　Specialist Operations branch within London's Metropolitan Police Service.